[Tagging] Key "location"
Ilpo Järvinen
ilpo.jarvinen at helsinki.fi
Fri Oct 14 17:38:38 BST 2011
On Fri, 14 Oct 2011, John F. Eldredge wrote:
> Pieren <pieren3 at gmail.com> wrote:
>
> > As an old mapper, you should also avoid the key "location" since the
> > location is stored in the nodes lat/lon coordinates...
>
> In the case of underground structures such as subway stations
> (Underground stations in UK parlance), where the surface-level entrances
> may be offset from the station proper and connected to it by tunnels, it
> may be difficult to establish the exact longitude/latitude of the
> station, as opposed to the longitude/latitude of its entrances. GPS
> units don't work while underground.
A fully-qualified mapper is then of course looking for other sources
of information that could provide an accurate longitude/latitude relative
to something on the ground. E.g., floor and roof tile counting,
locating ventilation shafts, emergency exit staircases, etc. can be
helpful :-).
--
i.
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